The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2015
Filed:
Feb. 07, 2013
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 1/04 (2006.01); H04L 25/02 (2006.01); H04L 1/00 (2006.01); H04L 27/26 (2006.01); H04L 27/38 (2006.01); H04L 27/00 (2006.01);
U.S. Cl.
CPC ...
H04L 25/022 (2013.01); H04L 1/0001 (2013.01); H04L 25/0232 (2013.01); H04L 27/2613 (2013.01); H04L 27/2647 (2013.01); H04L 27/3854 (2013.01); H04L 27/3863 (2013.01); H04L 27/3872 (2013.01); H04L 2027/003 (2013.01); H04L 2027/0073 (2013.01); H04L 2027/0089 (2013.01); H04L 2027/0093 (2013.01); H04L 2027/0095 (2013.01);
Abstract
A receiver receives a repeating or periodic signal and, based on the signal, estimates a carrier frequency offset for the receiver. Based on the signal and the estimated carrier offset, an I/Q mismatch for the receiver is estimated and compensation for the estimated I/Q mismatch is performed. After compensating for the estimated receiver I/Q mismatch, the carrier frequency offset is re-estimated.